Metalworking machine



May 18,1937. J; HUBER v 2,080,889

METALWORK'ING MACHINE Filed March 24,-1956 3 SheetSSheet l P-Tg1 5 INVENTOR.

ATTOR EY.

oH/V HUBER'. Y

May 18, 1937. J HUBER 2,080,889-

' METALWORKING MACHIN'E Filed March 24, 1936 5 Sheets-Sheet INVENTOR. y JOHN .HUBER `ATTORN May 18, 1937. J, HUBER 2,080,889

l METALWORKING MACHINE Filed March 24, 1936 3 Sheets-Sheet 3 IN V E NTOR. L/oH/v HUBER.

l' ATTO NEY.

Patented May 18, 1937 PATENT orner;

2,080,889 METALWORKING MACHINE John Huber, Los Angeles, Calif.,kv assignor to United Concrete Pipe Corporation, Los Angeles,

Calif.

Application March 24, 193s, serial Navogszs v claims. (c1. :1o-53s) L This invention relates to planers.

The general object of the invention is to provide an improved method and apparatus for planing the edges of metal plates or sheets.

In the art of plate welding it is essential that the edges lof the abuttingsheets be bevelled or recessed so that the arc will pass through the joint and depositsufcient metal to elect a'tight seal. In the practice heretofore employed it has been customary to endeavor to hold the edge of the sheet in a at position and to run the planer over the edge of the sheet so held. In practice, however, it has been heretofore found impossible to bring the edge of the sheet into a sufficiently straight lineso that a uniform cut can be secured throughout the entire length of the sheet. My invention 'seeksto overcome these difficulties by providing an apparatus wherein the sheet orzplateis suitably supported and wherein my' improved planer is provided with a pair of rollers which engage one on each side of the plate edge and adjacent to a cutting tool so that the relation of the edge of the plate to the tool does not vary during the cutting operation so that a cut of uniform cross section will be secured.

A more specic'object of the invention is to provide a planer including a fixed roller on a work engaging member and a movable member with a cutting tool associated with the latter member so that Va cut of uniform cross section will be secured.

Another object of my invention is to provide a novel method of planing the edge of a metal plate.

Other objects and thc advantages of the invention will be-apparent from the following description taken in connection with the accompanying drawings, wherein:

Fig. l is a front face View of my improved planer device;

Fig. 2 is an enlarged, top plan view of the carriage portion of the planer device with portions thereof broken away;

Fig. 3 is a front face view of Fig. 2;

Fig. 4 is a section taken on line 4 4 of Fig. 5 with portions thereof broken away;

Fig. 5 is an enlarged sect-ion taken on line 5-5 of Fig. 1;

Fig. 6 is a section taken on line 6 6 of Fig. 3;

,Fig 7 is Va longitudinal section through one of the propelling screw bearings; and

Fig. 8 is an end view of a cylinder made from a flat 'metal plate the sides of which have been bevelled by my improved planer device and shows the joining sides magnified.

"Referring to the drawings by reference characters I have shown my invention as embodied in a planer which is indicated generally at I0.

As shown the planer includes a suitable base I I which may be supported on concrete `or masonry and arranged upon this base I I I show a-pair of H-beamsr I2 which are spaced apart and which are connected by transverse' bars I3 the ends of which are welded tofthe vwebs 'of the H-beams I2.

On the'underxsurface of the outer edges of the top flange I' provide runners I4 which are secured to the flanges as by welding and above the flanges I provide .other runners I5 similarly secured in place. These runners after being welded in position are finished to size.

The carriage of my planer is indicated kat I6 and is provided with a top 'surfacey II and with downwardly 'directed side portions I8 the lower surface of which extend to the lower surface of the lower runners I4. An attaching plate I9 is secured' to the lower surfaces of the sides as by bolts 2U. 'Ihe distance between the inner faces of the sides II 8 is greater than the distance between the outer faces of the runners I4' and I5 and each space thus provided'receives a gib ZI. The gibs are engaged by set screws 22 and are normally urged inwardly against the outer face of the runners. The ends of the set screws are provided with recesses in which pins 23 are mounted. These pins engage a recess in the gibs 2| to prevent movement of the gibs relative to the sides I8.

The front of the carriage includes a raised portion 30 at each side and on each raised portion a base plate 3I is secured by bolts 32 and on each base plate an upwardly inclined frame member 33 is welded. The tops of the frame members 33 are connected by a block 34. A metal plate 35 is welded to the inner surface of the frame members 33 and to the lower surface of the block 34. The plate 35 has guides 36 secured thereto and these guides support a bearing block 31 which has a recess 38 in its upper surface to receive a screw 39 which rotates therein. The screw includesa head 40 and a threaded shank which is threaded into the block 34 and the co-nstruction is such that when the screw 39 is rotated by the grip 4I the bearing block 3B will be moved vertically.

The rear of the carriage has a raised portion as at 50 at each side and on each raised portion is a base 5I which is secured to the carriage by bolts 5,2. On the base 5I vertical posts 53 are welded and these posts are connected at their tops by a 'cross bar 54. Plates 53 serve to brace the posts 53. Welded to the cross bar are a pair ofr posts each of whichis provided with asemicylindrical recess 56 at its upper face and a shaft 51 is mounted in the recess 56 and is rotatably held in place by a block 58 which has a semicylindrical recess 56' in its lower face. The block 58 is held in place by bolts 59 which pass therethrough into the posts 55. The shaft 51 includesl a central portion 66 of enlarged diameter which is connected to a collar 6| and this collar receives a pivot bar 62 which is held in the collar by means of a set screw 63.

The pivot bar 62 is thus mounted so that it can shift about the axis of the shaft 51 and the end portion or" the pivot bar remote from the shaftr 51 passes through an aperture 64 in the bearing block 31 and the construction is such that when the screw 39 is rotated the pivot bar 62 will swing vertically about the axis of the shaft 51. The front end of the bar 62 is provided with a key 65 which engages in a keyway 66 in the bearing block 36 to prevent rotation of the pivot bar 62.

Mounted upon the top I1 of the carriage is a guide member 16 which is recessed at its edges to provide a dovetail 1| which fits a correspondingly dovetailed tool holder 12, the upper surface of which slidably engages the bottom of a plate 13 which is held in engagement with the lower surface of the plate 35 by screws 14.

The tool holder 12 is provided with a plurality of tool receiving apertures 15. The apertures 15 are shown as three in number although it will be understood that this number may be varied to suit the particular requirements in each case.

Cutting tools 16 are held in the apertures 15 by means of set screws 11. I prefer to use one or two cutting tools at a time.

The tool holder 12 is connected by screws 86 with a threaded block 8| in which a screw 82 rotates. The end portion of the screw remote from the block 8| includes a cylindrical portion which is supported in an aperture 83 on the carriage. The screw V82 is provided with a hand wheel 84 by means of which it may be rotated to advance the `tool 16 towards and from the work.

In order to move the carriage I6 along the work I provide a screw 96. This screw rests in a semi-cylindrical recess 9I in a bearing block 92 which is supported on the bars I3. These bars are distributed at intervals along the beams I2. The upper half of the screw 96 engages in a recess 93 in the carriage. This recess is of greater radius than the exterior radius of the screw 96 and holds a semi-cylindrical Babbitt nut 94 which is cast in place and the construction is such that when the screw 96 is rotated the carriage I6 will be moved. Adjacent vopposite ends of frame the screw 96 is shown as supported by anti-friction bearings 95 which are mounted on cross members 96 which are secured to the H-beams I2 by welding them thereto.

At one end the screw 96 is connected through a exible coupling member 91 to the armature shaft 98 of a gear reduction electric motor 99. (See Figs. 1 and '7.)

The front end of the carriage I6 supports an axle |66 which is fitted in an aperture therein and which is held in place by a pin I6I. Mounted on the axle is a collar |62 and a roller |63, the latter of which has a periphery which is preferably rounded. The outer end of the axle |66 is of reduced diameter and receives a washer |64 and a nut |65.

The end of the pivot bar 62 includes an axle portion |66 at its free end. This axle supports a collar |61, roller |68, washer |69, and nut ||6. Like the roller |63 the roller |68 has a rounded periphery and the two rollers are in vertical alignment.

In the drawings I have shown the rollers as engaging the top and bottom of a plateI II which is shown as having a portion of the side I I2 being removed by the bevel end of the cutting tool |66 to form a beveled portion ||3 on the side of the plate. After opposite sides of the plate I are beveled the plate is formed into a cylinder with the beveled sides together as shown in Fig. 8. After the plate has been formed into a cylinder the two sides ||2 of the plate are welded together in the space between the beveled portions ||3.

I preferably provide the rear of the guide member 16 with an aperture |2| and the carriage I6 with a similar aperture |22 and in these apertures I seat a pivot pin |23 which has a ange |24 at its upper end so that the guide member 16 may shift about the axis of the pivot pin |23. The pivot pin I 23 has a threaded aperture I 25 therein in which a bolt |26 is mounted to hold the pivot pin in position.

Mounted on the top of the carriage I secure a pair of supports |21 each of which has a hole |26 therein through which a spring |29 passes. One Vend of each spring |29 is mounted within a housing |36 which is held in place by screws |3I, while in the housing a reaction member |32 is adjustably held in place by a screw |33. The other end of the springs |29 each engage a plate |34 on the guide member 16. By adjusting the screws |33 the tension of the springs may be adjusted.

From the foregoing description it will be apparent that I have provided a novel planer device which is simple in construction and highly ecient in use.

Having thus described my invention I claim:

1. In a planer, a movable carriage, a support adapted to engage a work plate and adjacent the movable carriage, means on said carriage and adapted to engage the under side of one edge of a plate on the support, an elongated bar on said carriage, a second plate engaging means on the end of said bar, and disposed to engage the top of a plate on the support, pivot means on the end of said bar remote from said plate engaging means for supporting said bar, a cutter member mounted on said carriage adjacent one of said means, and means to move said carriage.

2. In a planer, a movable carriage, a Asupport adapted to engage a work plate and adjacent the movable carriage, a roller on said carriage and adapted to engage the under side of one edge of a plate on the support, Yan `elongated bar on said carriage, a second roller on one end of said bar, said rollers being in alignment and disposed to engage a plate on the support between them, pivot means on the other of said bar remote from said roller for supporting said bar, a cutter member mounted on said carriage adjacent one of said rollers, and means to move said carriage.

3. In a planer, a support for a plate, a base, uprights on said base, runners mounted on said uprights, a carriage slidable on said runners, said carriage having a threaded portion thereon, a threaded rod engaging said threaded portion to move said carriage, a roller on said carriage, a cutter mounted adjacent to said roller, a second roller mounted on said carriage and movable towards and from said first roller, said second roller being in alignment with said first roller.

4. In a planer, a support adapted to engagea plate, a movable carriage, a roller on said carriage and adapted to engage the under side of one edge of a plate on said support, said roller being mounted on a fixed axis, an elongated bar on said carriage, a second roller on the end of said bar, said rollers being in alignment to receive a plate between them, pivot means on the end of said bar remote from said roller for supporting said bar, a cutter member mounted on said carriage adjacent said second roller, means to adjust said cutter member laterally and forwardly and means to move said carriage.

5. In a planer, a base, a carriage slidably mounted on said base, means to move said carriage, a tool holder, means to mount the tool holder on the carriage for movement about a vertical axis, a tool in said tool holder, resilient means on said carriage intermediate the length of said tool holder and on each side of the tool holder to hold said tool holder in adjusted position, a work engaging member on said carriage adjacent the tool holder and a second work engaging member on the carriage adjacent the tool holder and the i'irst Work engaging member.

6. In a planer, a base, a carriage slidably mounted on said base, means to move said carriage, a tool holder, means to mount the tool holder on the carriage for movement about a vertical axis, a tool in said tool holder, resilient means engaging each side of the tool holder to hold said tool holder in adjusted position, a. work engaging member on said carriage adjacent the tool holder, a second work engaging member on the carriage adjacent the tool holder and the first work engaging member, and means to move the working members towards and from each other.

7. In a planer, a base, a carriage slidably mounted on said base, means to move said carriage, a tool holder, means to mount the tool holder on the carriage for movement about a vertical axis, a tool in said tool holder, resilient means intermediate the length of said tool holder and on each side of the tool holder to hold JOHN HUBER. 

